分数×分数の計算(1)

分数×分数の計算が出題されます。

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使い方をみる

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/20

(1)
56
×
56
=
2536
(2)
67
×
38
=
928
(3)
78
×
23
=
712
(4)
23
×
89
=
1627
(5)
13
×
17
=
121
(6)
36
×
24
=
14
(7)
67
×
79
=
23
(8)
24
×
47
=
27
(9)
79
×
56
=
3554
(10)
68
×
15
=
320
(11)
14
×
19
=
136
(12)
67
×
48
=
37
(13)
59
×
25
=
29
(14)
14
×
34
=
316
(15)
39
×
15
=
115
(16)
28
×
24
=
18
(17)
45
×
79
=
2845
(18)
13
×
48
=
16
(19)
39
×
56
=
518
(20)
36
×
28
=
18

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